Weft-spindle tube for spinning and winding machines



E. EGLI. WEFT SPINDLE TUBE FOR SPINNING AND WINDING MACHINES.

APPLICATION FILED OCT. 221918.

Patented Mar. 9, 1920.

v WEFELSHNDLETUBE Fons'rrNNINefANn wINDrNG MACHINES.'

Y Speciioation of Letters latent, 'l p Patented Mar, 9&11920.'

fpplicgtion'iiled October- 22, 1918."v Serial 110,259,218.

' To all whom it tay Y 'y Beit known 'that I, :EDUARD Y zenof the Republic of Switzerland, resld- EGLI, ahcitiingI at.Rti, inthe Canton of Zurich, Republic/` of Switzerland, have` invented certain new andl usefulImprovementsin Weft- Spindle Tubes for Spinning Machines; andI do herebydeclare the -folrlowing to be fa full, clear, andy exact description ofY the invention, such asfwill enable others skilled in the art to which it appertains to make andfuse the same, refer'- ence being had to thelsaccompanying drawings, and to letters of reference marked thereon, which. form a part of this .speci/- cation. 1 f

In known processes they matic change of the weft-threads are spun, in the case of ring-spinning rames,.on rela;- tively stout wooden pirns (Northrop pirns) having a projecting ringed head; or, inthe case of self-actors, on paper tubes, whichfcan f of the self-actors, lthislbeingy for theLl purthen be Vplaced on spindles provided' with Va projecting` ringed head. Further, the weit material intendedkfor looms with automatic change of 'weft-thread is spun .inring-.splnning frames on well known lightweft-tubes,

and these latter put on Northrop spindles. as i.

mentioned above, like the copsin thexcase pose, on the one hand, ofV increasing the working speed of the ring-spinning frame,

and, on the other hand, for economy in transport. Wert threads are also wound off the paper tubes of the self-actors on to Northrop` spindles.

he object of the present invention is wet-spindle-tube for spinning and winding machines, the novel arrangement of whichV consists in the provision, on its lower end,

of means for directly-placing it in weavers shuttles, for the automatic change of the weft-thread and projections and recesses enabling it to be firmly secured in the shuttle, in order that, in spinning in ring-spinning frames, itl may be possible to dispense with the relatively heavy and expensive pirnswith projecting ringed heads, with the putting of the known ringed throstle tubes on` VNorthrop spindles, and, in the case of spin- Y ning with self-actors, with the employment of Northrop s indles and there-windingy on to Northrop pirns.

Withthe present wet-spindle-tube, a conand ".Winding weft-threads `for the weavers shuttles offlooms withfauto-` in the. weavers shuttle. F ig.,4.isa longi- I sidi-,fable reduceenin weight, and thea-.with

a greater working speed and a smaller expenditure of power, are attainable, compared with spinning on Northrop pirns; andfurther, in ,comparison with weaving with Northrop -pirns, or' withcops put on Northrop spindles, lessdead `weight in thefshuttle, and

therefore less ,shock,a reduced wear ofthe striking parts, and less power. for exchanging the thread-carrier.;

By the omissionof the expensive pirn and 'spindle material, avery considerable'y saving of material, Vand therbyof eXpense,is insuredgy there isless jdead weight in transport anda Igreat,saving ofzla'bor efected, n comcarrier is put on.

`In the drawing, ekamples of, the new spindle anden a selfactor spindle, as well as ures 1 and 2 represent a novel thread-carrier vplaced on a ring-spindle and on a'self-actorspindle. Fig. 8 Vshows the novel .weft-tube tudinal sectionV oi. thev clamping spring.

Figs. .5 and 6 representweft-tubes improperly put on in effecting a change, and'Fig's. 7 *12nd f8 illustrate r.other vforms ofthe weftytue.: U y

ona-ring-spindle 4' and inf-Fig. 2 on a selfactor spindle 5, has a part 8 which servesl for fixing it firmly in the shuttle and for insuring the automaticV change of the wefttube. This part forms a backward extension of the part 10 of the slightly conical weft-tube which receives the weft-thread-9 `and has two shoulders 11 which project slightly beyond the circumference of the tube. These shoulders may be formed in one piece with the weft-tube or maybe applied thereto.- yThe weft-tube may consist of wood, hard paper, paste-board` or the like.

In the Vshuttle 7 (Fig. 3), a `fork-shaped 100 clamping spring 12 is arranged, the arms of which have recesses 13 corresponding to the shoulders 11 of the weft tube. In these jrecesses, the shoulders 11 are inserted; the weft-tube being thereby securely heldin the 105 shuttle. In consequence of the exceptional i lightness of the weft-tube, it is not necessary that the strength of the clamping `spring 12 shouldv be great.; so that a light hammer and little power suffice for changingthe 110 7;0 parson with the system in which thethread weft-tube and its arrangement -on a ring- '1.5 in a weavers shuttle, arev illustrated; Figsituated on the "weft-,change side, the shoulders of the weft-tube, instead of vcoming into` the recesses 413t of the clamping spring, only arrive adjacently thereto on the Lin-recessed parts'ofthe spring (see Fig. 5), therst time that, following the changeofthe tube, the shuttle runs to the left and strikes in the shuttlelbox, the weft-tube'lf will, by reason dfi itsfvz's Wina, bedriven axially Yso `that the'lshoulders ofV the spindle 5 automatically come intothe recesses `13V oflthegclamping spring l2; the weft-tube thereupon' assuming the correct Vholding position. Fig.V -6 illus trates the case where, in consequence 'of' the shuttle' not 'having run suliioiently' into the shuttlesbox Vbnly one shoulder has l been pushed into the-"clamping spring. Inthis caseythe `weft-tube is heldwlith sufficient firmness. Y The 'wet-thread'is yspun or woundlon .the weft'tube,and this isput on a ringespindle 4, Fig. l) or on afself-actor` -spindle 5 (Fig. 2), which combination is substantially lighter than cops on spindles' witlrstont projecting ringed heads 5' andthis very light tube can`-be put directly into thefshuttle, held tirmlytherein and readilychanged.

In theform' of construction shown `in Fig. 7, theshoulders 11 forsecuring the `weft- Vtube f are `:formed by meansV of circumferential grooves-14. Y

'Fg 8 represents a 4wet-tubemade of hard paper with sleeve `15 made of metal, for. example, v and shoulders l1 `placed thereon.

' `As stated'at the beginning,4 the `present Vweft-tube has great advantages by Vreason prising, in combination.a shuttle provided with a clamping springhaving a plurality vof annular recesses forming flat depressions and 'fiat elevations, a weft tube havingat `its rear endfalplurality of flat collars disposed so as to form between them recesses adapted to Areceive'one'fof Vthe elevations 'of the clampingfspring, the surfaces between theelevations 'and depressions being;per-' pendiculzn'` to-V theaxis of th'ef weit-tube and the surfaces 'of the elevations and depressions beingiparallelto suchfaxis.

'27A-device of the class describedvcomsleeve secured `on the 'rear end .of said weft tubeland havingfraplurality of fiat collars disposed so' as' to; form between themrecesses eachadapted to receivefonelof thefelevations of the clamping spring, the surfaces between the elevations and depressionsbeing perpendicular' to' theaxis of the'fweft tube'and the surfaces l of the", elevations and' vdepressions lbeing parallel to such: axis.

3. .A clamping spring' for looxn"v shuttles, comprising -a l'pair Y of arms Y each. having formed therein aplurality'of recesses forniing flat elevations and flat depressions, the

surfaces ofsaid` elevations" and depressions being parallel with :the axis oit'` the spring, and thev surfaces between the. elevations `and depressions -being vperpendicular to such axis. 1 Y

In l`testii'nony'whereof I fhave signed fmy name to thisspecification.

5 JBIDUARD EGLI. 

